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Projects

Emerging Algal Toxins in the California Current Sy...

Surveys in California have highlighted the occurrence of HAB toxins in estuarine waters and shellfish, but there is concern that current monitoring approaches under-report the threats. There is a need ...
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Establishing the Sources of Toxic Cyanobacteria Bl...

Although phosphorus typically limits the growth of freshwater phytoplankton populations, little is known about how the common toxic alga Microcystis aeruginosa responds to variations in phosphorus concentrations and sources. Our ...
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Estimating Economic Losses and Impacts of Florida ...

This project, funded by NCCOS through the Gulf of Mexico Coastal Ocean Observing System, will examine the economic impacts of Karenia brevis events across 80 different economic sectors, based on ...
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Evaluation of Mitigation Strategies for Harmful Al...

We will assess the potential economic benefits of mitigation strategies for harmful algal blooms in the Dungeness crab fishery along the U.S. West Coast. Why We Care In 2015, the ...
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Expanding ISSC Validated Options for Monitoring Di...

In the U.S., the Interstate Shellfish Sanitation Conference (ISSC) and the Food and Drug Administration (FDA) establish methods of toxin analysis to regulate shellfish, and the National Shellfish Sanitation Program ...
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Expanding the Southeast Alaska Tribal Ocean Resear...

This project expands existing harmful algal bloom (HAB) monitoring conducted by the Sitka Tribe of Alaska Environmental Research Laboratory (STAERL) to include testing shellfish for domoic acid and diarrhetic shellfish ...
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Fast Tool to Detect Toxic Shellfish

The marine food source and livelihood of tribes and communities along the Pacific coast are threatened by Pseudo-nitzschia blooms that produce domoic acid, a potent neurotoxin. To provide remote communities ...
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Genomics of HAB Dinoflagellates: Identification of...

We are working to identify key genes and processes encoded in the dinoflagellate genome that are responsible for regulating the growth, maintenance, and termination of toxic dinoflagellate blooms. Analogous to ...
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HABON-NE, An Adaptive Observing Network for Real-T...

New England coastal waters have long been impacted by Alexandrium, a species that causes paralytic shellfish poisoning. Other species have recently emerged in the Gulf of Maine, including Pseudo-nitzschia and ...
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Hand-held Sensor for Domoic Acid Poisoning of Mari...

The algal toxin domoic acid (DA) poisons hundreds of marine mammals each year. Presently, first responders do not have access to sensors capable of rapidly and accurately monitoring DA for ...
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News

Ice Seals as Sentinels for Algal Toxins in the Pac...

An NCCOS-supported study detected the algal toxins domoic acid and saxitoxin in three out of four species of ice seals in western and northern Alaska. The finding suggests that ice ...
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Natural Algicide Eliminates Toxic Algae With Minim...

NCCOS-sponsored research on a natural algicide produced by Shewanella bacteria found that the compound can kill toxic algae without much harm to other organisms. The findings suggest that nature itself ...
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NCCOS Expands Monitoring of More Lakes, Coastal Ba...

With harmful algal blooms (HABs) occurring in the nation’s lakes, bays and sounds, NCCOS is expanding HAB monitoring and forecasting to these smaller water bodies which can be resolved by ...
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Report on U.S. Marine HABs: History, Current Statu...

NCCOS recently supported a review of the status of marine HAB problems in the U.S., part of a global statistical analysis of harmful algal blooms (HAB) events. The study relies ...
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Harmful Algal Bloom Symposium Highlights Early Car...

Credit: 10.5 U.S. Symposium on Harmful Algae Planning Committee. The 10.5 U.S. Symposium on Harmful Algae held at the end of May showcased the work of students, postdoctoral, and early ...
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Smaller Harmful Algal Bloom Predicted for Western ...

A boat cuts through an algal bloom in Saginaw Bay, as seen by aircraft during a flyover in summer of 2019. This airborne campaign is ongoing in conjunction with NOAA ...
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Yessotoxins Responsible for Mass Shellfish Mortali...

Dying clams in Hood Canal (Rocky Bay, Washington, 2019). Credit: King et al, 2021. In the summers of 2018 and 2019, shellfish growers in Washington state were rocked by mass ...
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Special Satellite Algorithm Used to Detect Irish H...

NCCOS collaboration with a major Irish public research university and the Irish agency responsible for marine research led to the successful adaptation of a NCCOS employed satellite ocean color processing ...
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Enabled by NCCOS Response and Training, SC Respond...

Left: Visible Aphanizomenon bloom from Goose Creek Reservoir. Right: NCCOS scientist Steve Morton collects samples. Credit Karen Morton. A blue-green algae (cyanobacteria) bloom was detected in a reservoir used as ...
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Research Paper Deemed One of Special Significance ...

A research paper, supported in part by NCCOS, measuring the metabolic cost to a red tide dinoflagellate to defend itself against predation (consumption) has been recommended by the prestigious Faculty ...
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Products

Maps, Tools & Applications

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Data & Publications

Effects of inorganic and organic nitrogen and phosphorus on the growth and toxicity of two Alexandrium species from Hong Kong

The effects of three nitrogen (N) and two phosphorus (P) inorganic and organic forms on the growth, toxin content and composition, toxin production, and chemical composition of Alexandrium catenella and Alexandrium tamarense isolated from coastal waters of Hong Kong were ...
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Effects of temperature and salinity on the growth of Alexandrium (Dinophyceae) isolates from the Salish Sea

Toxin-producing blooms of dinoflagellates in the genus Alexandrium have plagued the inhabitants of the Salish Sea for centuries. Yet the environmental conditions that promote accelerated growth of this organism, a producer of paralytic shellfish toxins, is lacking. This study quantitatively ...
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Environmental controls, oceanography and population dynamics of pathogens and harmful algal blooms: Connecting sources to human exposure

Coupled physical-biological models are capable of linking the complex interactions between environmental factors and physical hydrodynamics to simulate the growth, toxicity and transport of infectious pathogens and harmful algal blooms (HABs). Such simulations can be used to assess and predict ...
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Environmental Monitors on Lobster Traps (eMOLT): long-term observations of New England's bottom-water temperatures

Nearly one hundred New England lobstermen have installed temperature sensors on their traps to record hourly values at fixed locations since 2001. These moorings are distributed primarily along the shelf edge in the northern Mid-Atlantic Bight and along the entire ...
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Evaluation of Rapid, Early Warning Approaches to Track Shellfish Toxins Associated with Dinophysis and Alexandrium Blooms

Marine biotoxin-contaminated seafood has caused thousands of poisonings worldwide this century. Given these threats, there is an increasing need for improved technologies that can be easily integrated into coastal monitoring programs. This study evaluates approaches for monitoring toxins associated with ...
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Factors regulating excystment of Alexandrium in Puget Sound, WA, USA

Factors regulating excystment of a toxic dinoflagellate in the genus Alexandrium were investigated in cysts from Puget Sound, Washington State, USA. Experiments were carried out in the laboratory using cysts collected from benthic seedbeds to determine if excystment is controlled ...
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First report of an Ansanella granifera bloom associated with eutrophication in Cuban waters, Caribbean region

Harmful Algal Blooms (HABs) have been associated with fish and shellfish kills, ecosystem damage, human health impacts, and significant economic losses to the aquaculture and tourist industries throughout the world. The increase of HABs in recent years is generally related ...
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Harmful Algae and Their Potential Impacts on Desalination Operations off Southern California

Seawater desalination by reverse osmosis (RO) is a reliable method for augmenting drinking water supplies. In recent years, the number and size of these water projects have increased dramatically. As freshwater resources become limited due to global climate change, rising ...
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Harmful Algal Bloom Forecasting Branch Ocean Color Satellite Imagery Processing Guidelines

The Harmful Algal Bloom - Forecasting Branch (HAB-FB) is a research group within the National Oceanic and Atmospheric Administration (NOAA), National Centers for Coastal Ocean Science (NCCOS) tasked with forecasting and monitoring HABs. One of the more effective ways to ...
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Harmful Algal Blooms along the North American West Coast Region: History, trends, causes, and impacts

Along the Pacific coast of North America, from Alaska to Mexico, harmful algal blooms (HABs) have caused losses to natural resources and coastal economies, and have resulted in human sicknesses and deaths for decades. Recent reports indicate a possible increase ...
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General Pages

Tampa Bay

Harmful Algal Bloom Monitoring System: Southwest FloridaAlgal Blooms from Satellite for Tampa BayThis page shows algal blooms in Tampa Bay. Blooms of some different types of algae may be present ...
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NOAA Internship Opportunities

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